Force ISPC3 to update apache2 vhost files

I am working with the latest SVN of ISPC3 and wanted to know if there is a way to force ISPConfig to update/rewrite all of apache2's vhost files.

The thing is, I have been configuring ISPC3 on Debian Lenny.
I know I know, not a good idea. But I am using mod_gnutls with it and so far everything works out well. Even so, when configuring the system with a little tweak here a little tweak there the change doesn't take effect right away.

To give you an idea of what I have done here, I have modified the /usr/local/ispconfig/server/conf/vhost.conf.master file to make use of mod_gnutls. Below is a diff of the file.

Thanks Till,
From your description my config should have already updated and it's not.
Can you give me some pointers to start looking for what caused this issue?

I have checked the ISPC log and have found it empty. Is there a way to enable verbose logging for ISPC3?

Also, since ISPC3 has the ability to apply additional apache directives, does ISPC3 do an 'apache2ctl -t' check before applying the configuration?
If not, should this be a feature request to parse the output of 'apache2ctl -t' before reloading Apache2 and notify you of the (error)s?

BTW, I think I may have stumbled upon a possible bug.
When I insert the following code ISPC3 chokes on it (no updates to the vhost file). But if I place the code in a file and then use the 'Include /path/to/file' directive everything works.